Editing Function-Integrated Ru Catalyst for Photochemical CO2 Reduction

{{DOI|doi=10.1021/jacs.8b09933}}
[[Category:Photocatalytic CO2 conversion to HCOOH]]
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===Abstract===
====Summary====
A photochemical reduction of CO<sub>2</sub> to CO was shown using the ruthenium catalyst and sensitizer {{#moleculelink:|link=VHZCMYUABSFYRW-UHFFFAOYSA-N|image=false|width=300|height=200}}. Turnover numbers (TONs) up to 353 and a selectivity of 97% for CO were reached in dimethylacetamide/water. The experiments were conducted under visible-light irradiation (λ = 420-750 nm) with BIH or TEOA (see section SEDs below) as sacrificial electron donors.
==== Advances and special progress====
The authors describe the at that time first example of a nonsensitized Ru(II) photocatalyst for CO<sub>2</sub> reduction. The reported catalyst showed a higher TON and selectivity than previously reported nonsensitized photocatalysts.

==== Additional remarks ====
The product selectivity can be tuned by modification of the basicity of the reaction media. Formic acid can be produced with a selectivity of >99% and a TON of 14 when switching to a dimethylacetamide/TEOA mixture.

===Content of the published article in detail===
The article contains results for the reduction of CO<sub>2</sub> to CO under visible-light catalysis using a ruthenium as a catalyst without the need for an additional sensitizer. The catalytic system performs best (referring to the TON of CO production) in dimethylacetamide/water and can be modified to produce formic acid in dimethylacetamide/TEOA.

==== Catalyst/Photosensitizer ====
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  -INDIGO-01102416172D

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M  V30 23 C 11.548 -5.76336 0.0 0
M  V30 24 C 12.0427 -4.89496 0.0 0
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M  V30 32 1 27 29
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M  V30 35 2 33 31
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M  V30 37 1 31 35
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M  V30 END BOND
M  V30 END CTAB
M  END
</chemform>

==== Investigation ====
{{#experimentlist: |form=Photocatalytic_CO2_conversion_experiments|name=Control experiments}}The catalyst acts also as photosensitizer

{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=Concentration and solvent effect|importFile=}}{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=Hg poisoning|importFile=}}

{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=Presence of water effect|importFile=}}

{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name=Maximum TON|importFile=}}

====Sacrificial electron donor ====
In this study, the experiments were done with the sacrificial electron donors TEOA ([[Molecule:100507|100507]]) and BIH ([[Molecule:100508|100508]]).
====Additives ====
In this study, the addition of Hg(0) was tested and control experiments under argon atmosphere were conducted.
__FORCETOC__[[Category:Publication]]